Microsoft Corporation is a global leader in the design, development and marketing of operating systems and software programs for PCs and servers. The group also builds and sells computer equipment. Net sales are broken down by activity as follows: – Sales of operating systems and application development tools (49.4%): mainly for servers (Azure, SQL Server, Windows Server, Visual Studio, System Center, GitHub, etc .) and (Windows); – Cloud-based software application development (25%): productivity programs (Microsoft 365; Word, Excel, PowerPoint, Outlook, OneNote, Publisher and Access), integrated management and customer relationship management (Dynamics 365), online file sharing and management ( OneDrive) and unified and collaborative communications (Skype and Microsoft Teams); – Sales of video game hardware and software (8.8%): mainly Xbox; – business services (3.1%); – Sales of computers, tablets and accessories (1.9%); – Other (11.8%). The United States accounts for 50.9% of net sales.